Drive attachment for vehicle-wheels.



PATENTED JUNE 2; 1908.

J. H. JOAQUIN. DRIVE ATTACHMENT FQR VEHICLE WHEELS.

APPLICATION FILBDMAY 14. 1907- UNITED STATES PATENT OFFICE.

JOSEPH H. JOAQUIN, OF ST LOUIS, MISSOURI.

DRIVE ATTACHMENT FOR VEHICLE-WHEELS.

To all whom it may concern:

Be it known that I, JosEPH H. JOA UIN, a citizen of the United States,and resident of St. Louis, Missouri, have invented certain new anduseful Improvements in Drive Attachments for Vehicle-Wheels, of whichthe following is a specification.

This invention relates to improvements in a drive attachment for vehiclewheels, and consists in the novel arrangement, construction, andcombination of parts as will be fully hereinafter described and claimed.

The object of my invention is to construct a cap to be placed upon thehub of the vehicle wheel which is directly connected to the spokes ofthe wheel, and upon the cap is removably attached a sprocket wheel bywhich the vehicle wheel is propelled when adapted to be used forautomobile purposes.

A further object of my invention is to provide a sprocket wheelremovably mounted upon a cap and held in locked position when placedupon the cap and to be directly connected to each of the spokes of thevehicle wheel so as to rovide rigidity and propel the vehicle wheewithout slippage.

, In the drawings, Figure 1 is a vertical central sectional view of myinvention shown in position upon the hub of an ordinary vehicle wheel.Fig. 2 is a side view of a vehicle wheel showing my device in position.Fig. 3 is a central sectional view of my invention attached to the hubof a vehicle wheel after removing one section of the hub cap.

In the construction of my invention I provide a cap 4 suitably dished tofit over the usual metallic hub cap 5 and it is provided with aradiallyprojecting flange 6 to correspond with the flange 7 of the hubcap, and by which the cap 4 is rigidly retained in position andconnected to each spoke 8 of the vehicle wheel by means of the rivets orbolts 9. I also form a radially projecting flange 10 upon the cap 4, andat such location as to provide a threaded shoulder 11 of sufficientwidth to permit the application of the sprocket wheel 12. The sprocketwheel 12 is also internally screw-threaded to correspond with thethreads u on the shoulder 11, and after the sprocket w ieel is inposition so that its surface and the surfaceof the flange 1O closelycontact the same becomes tightly locked in position upon the cap 4 andto per- Specification of Letters Patent.

Application filed May 14, 1907.

' Patented June 2, 1908.

Serial No. 373,688.

mit the said wheel from unscrewing in the event of backing the wheel, Iprovide a set screw 13 which is located in the flange 10, the end ofsaid set screw being hollowed forming a cup shaped contacting edge whichvehicle wheels I remove the hub cap 5 and allow my cap 4 to take itsplace.

The essential feature of my invention is to provide a cap connecteddirectly to the spokes of the wheel and supporting a sprocket wheelwhich can be easily removed and re placed by a wheel of larger orsmaller diameter to accommodate the several speeds desired forautomobile purposes. If it is desired to change the speed the sprocketWheel of the required size is placed upon the cap in the position asshown in the drawings. This application of a sprocket wheel upon the hubof a vehicle wheel is used when converting an ordinary vehicle into anautomobile so as to provide a proper drive to the wheels of the vehicle.

Applicant is well aware of the existence of a patent which places asprocket wheel on the hub of a vehicle wheel, but the same is notdirectly connected or attached to the spokes of the wheel, andtherefore, has a tendency to slip upon the hub of the wheel.

Having fully described my invention, what I'claim is:

1. A device of the class described, comprising a cap, a flange formedintegral with said cap, said cap placed over one half of the hub andretained in position to the spokes of the vehicle by means of saidflange, a second flange formed integral with the cap, an externallyscrew threaded shoulder formed on the cap, and a sprocket wheelremovably attached to the cap, substantially as specified.

2. A device of the class described, comprisinga cap in combination witha vehicle wheel, a flange located on one end and formed integral withthe cap whereby the same is rigidly held in position upon the hub by therivets which retain the spokes in position upon the hub, a second flangeformed integral with the cap forming a shoulder, a .In testimonywhereof, I have signed my sprocket wheel located upon the shoulder andname to this specification, in presence of two supported by the flange,and a set screw eX- subscribing Witnesses.

tending through the flange to contact with JOSEPH H. JOAQUIN. 5 thesprocket Wheel for additionally locking Witnesses:

the same in position upon the cap, substan- ALFRED A. EIOKS,

tially as specified. WALTER O. STEIN.

